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TPS40200D Datasheet(PDF) 5 Page - Texas Instruments |
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TPS40200D Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 39 page  www.ti.com TYPICAL CHARACTERISTICS -50 -25 0 25 50 75 100 125 Temp - °C 1.56 1.57 1.58 1.59 1.6 1.61 1.62 1.63 1.64 1.65 1.66 V = 12 V DD 5 10 15 20 25 30 35 40 45 50 55 V - V DD 0 0.5 1 1.5 2 2.5 3 -50 -25 0 25 50 75 100 125 Temp - °C 4 4.05 4.1 4.15 4.2 4.25 4.3 Turn Off Turn On -50 -25 0 25 50 75 100 125 Temp - °C 153.5 154 154.5 155 155.5 156 156.5 V = 12 V DD TPS40200 SLUS659 – FEBRUARY 2006 DEVICE INFORMATION (continued) Table 1. TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. Switching frequency setting RC network. Connect capacitor from RC pin to GND pin and resistor from VIN RC 1 I pin to RC pin. The device may be synchronized to an external clock by connecting an open drain output to this pin and pulling it to GND. The pulse width for synchronization should not be excessive. See Section 1. Soft-start programming pin. Connect capacitor from SS to GND to program soft start time. Pulling this pin SS 2 I below 150 mV causes the output switching to stop, placing the device in a shutdown state. The pin also functions as a restart timer for overcurrent events. COMP 3 O Error amplifier output. Connect control loop compensation network from COMP to FB. FB 4 I Error amplifier inverting input. Connect feedback resistor network center tap to this pin. GND 5 Device ground. GDRV 6 O Driver output for external P-channel MOSFET Current-sense comparator input. Connect a current sense resistor between ISNS and VDD in order to set ISNS 7 I desired overcurrent threshold. VDD 8 I System input voltage. Connect local bypass capacitor from VDD to GND. QUIESCENT CURRENT vs TEMPERATURE QUIESCENT CURRENT vs VDD Figure 5. Figure 6. SOFT START THRESHOLD vs TEMPERATURE UVLO TURN ON AND TURN OFF vs TEMPERATURE Figure 7. Figure 8. 5 Submit Documentation Feedback |
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